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| author | Ram Pai <[email protected]> | 2018-05-04 20:01:51 +0000 |
|---|---|---|
| committer | Michael Ellerman <[email protected]> | 2018-06-05 01:03:25 +0000 |
| commit | eabdb8ca8690eedd461e61ea7780595fbbae8132 (patch) | |
| tree | db6036b2c5c08dd3c43e7dcb53fbc668bb1e15c8 /drivers/pci/controller/pci-host-common.c | |
| parent | powerpc/powernv: copy/paste - Mask SO bit in CR (diff) | |
| download | kernel-eabdb8ca8690eedd461e61ea7780595fbbae8132.tar.gz kernel-eabdb8ca8690eedd461e61ea7780595fbbae8132.zip | |
powerpc/pkeys: Detach execute_only key on !PROT_EXEC
Disassociate the exec_key from a VMA if the VMA permission is not
PROT_EXEC anymore. Otherwise the exec_only key continues to be
associated with the vma, causing unexpected behavior.
The problem was reported on x86 by Shakeel Butt, which is also
applicable on powerpc.
Fixes: 5586cf61e108 ("powerpc: introduce execute-only pkey")
Cc: [email protected] # v4.16+
Reported-by: Shakeel Butt <[email protected]>
Signed-off-by: Ram Pai <[email protected]>
Reviewed-by: Thiago Jung Bauermann <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Diffstat (limited to 'drivers/pci/controller/pci-host-common.c')
0 files changed, 0 insertions, 0 deletions